Abstract: Examples disclosed herein relate to a meta-structure based reflectarray for beamforming wireless applications and a method of operation of passive reflectarrays in an indoor environment. The method includes receiving, by a plurality of passive reflectarrays, a Radio Frequency (RF) signal from a source. The method also includes reflecting, by the plurality of passive reflectarrays, the RF signal to generate a plurality of RF beams to a respective target coverage area, in which each of the plurality of RF beams increases a multipath gain along a signal path between a corresponding passive reflectarray to the respective target coverage area.

Abstract: Examples disclosed herein relate to an antenna system in a radar system for object detection with a sounding signal. The antenna system includes a radiating array of elements configured to transmit a reference signal and an antenna controller coupled to the radiating array of elements. The antenna controller is configured to detect a set of reflections of the reference signal from an object. The antenna is configured to determine a location of the object and a mobility status from the set of reflections. The antenna controller is also configured to generate signaling indicating the location and mobility status of the object as output to identify a target object different from the object. Other examples disclosed herein relate to a radar system and a method of object detection with the radar system.

Abstract: Examples disclosed herein relate to radar systems to coordinate detection of objects external to the vehicle and distractions within the vehicle. A method of environmental detection with a radar system includes detecting an object in an external environment of a vehicle with the radar system positioned on the vehicle. The method includes determining a distraction metric from measurements of user activity obtained within the vehicle with the radar system. The method includes adjusting one or more detection parameters of the radar system based at least on the detected object and the distraction metric. Other examples disclosed herein relate to a radar sensing unit for a vehicle that includes an internal distraction sensor, an external object detection sensor, a coordination sensor and a central controller for internal and external environmental detection.

Abstract: Examples disclosed herein relate to methods and apparatuses for an antenna structure having reactance control of an array of radiating elements to achieve radiation beam tilting.

Abstract: Examples disclosed herein relate to an antenna system in a radar system for object detection with a sounding signal. The antenna system includes a radiating array of elements configured to transmit a reference signal and an antenna controller coupled to the radiating array of elements. The antenna controller is configured to detect a set of reflections of the reference signal from an object. The antenna is configured to determine a location of the object and a mobility status from the set of reflections. The antenna controller is also configured to generate signaling indicating the location and mobility status of the object as output to identify a target object different from the object. Other examples disclosed herein relate to a radar system and a method of object detection with the radar system.

Abstract: Examples disclosed herein relate to a radiating structure. The radiating structure has a transmission array structure having a plurality of transmission paths with each transmission path having a plurality of slots and a pair of adjacent transmission paths forming a superelement. Each superelement has a phase control module to control a phase of a transmission signal. The radiating structure also includes a radiating array structure having a plurality of radiating elements configured in a lattice, with each radiating element corresponding to at least one slot from the plurality of slots and the radiating array structure positioned proximate the transmission array structure. A feed coupling structure is coupled to the transmission array structure and adapted for propagation of a transmission signal to the transmission array structure.

Abstract: Examples disclosed herein relate to a radiating structure. The radiating structure has a transmission array structure having a plurality of transmission paths with each transmission path having a plurality of slots and a pair of adjacent transmission paths forming a superelement. Each superelement has a phase control module to control a phase of a transmission signal. The radiating structure also includes a radiating array structure having a plurality of radiating elements configured in a lattice, with each radiating element corresponding to at least one slot from the plurality of slots and the radiating array structure positioned proximate the transmission array structure. A feed coupling structure is coupled to the transmission array structure and adapted for propagation of a transmission signal to the transmission array structure.

Abstract: Examples disclosed herein relate to radar systems to coordinate detection of objects external to the vehicle and distractions within the vehicle. A method of environmental detection with a radar system includes detecting an object in an external environment of a vehicle with the radar system positioned on the vehicle. The method includes determining a distraction metric from measurements of user activity obtained within the vehicle with the radar system. The method includes adjusting one or more detection parameters of the radar system based at least on the detected object and the distraction metric. Other examples disclosed herein relate to a radar sensing unit for a vehicle that includes an internal distraction sensor, an external object detection sensor, a coordination sensor and a central controller for internal and external environmental detection.

Abstract: Examples disclosed herein relate to a Meta-Structure (“MTS”) antenna system with adaptive frequency-based power compensation. The MTS antenna system includes a radiating array structure having a plurality of radiating elements, and a transmission array structure coupled to the radiating array structure and feeding a transmission signal through to the radiating array structure. The transmission array structure has a plurality of super element transmission paths, each having a plurality of vias to form transmission paths and a plurality of slots for feeding the transmission signal to the radiating array structure, and a plurality of power amplifiers coupled to an adaptive feedback module, each power amplifier coupled to a super element transmission path, the adaptive feedback module to adjust a power gain at a center frequency.

Abstract: Radar systems and methods of using the same for detecting objects in non-line-of-sight (“NLOS”) areas are disclosed. In various embodiments, the disclosed radar systems and methods use a clutter signature to determine a location and motion of an object. The disclosed radar systems may include a sounding signal module for transmitting a sounding signal to determine a clutter signature; a radar controller generating, controlling, and interpreting an object detection signal; a transmit antenna unit coupled to the radar controller, adapted to transmit the object detection signal; a receive antenna unit coupled to the radar controller, adapted to receive a return object detection signal; and/or a non-line of sight module coupled to the transmit antenna unit and the receive antenna unit adapted to determine a location of a detected object.

Abstract: Examples disclosed herein relate to methods and apparatuses for an antenna structure having reactance control of an array of radiating elements to achieve radiation beam tilting.

Abstract: Examples disclosed herein relate to illustrate an in-vehicle communication system having wireless extension devices, such as an active repeater or an edge reflectarray device. The wireless extension devices operate in coordination to redirect signals within a vehicle.

Abstract: A radar system having multiple layers and a radiating array of elements, wherein signals are presented to the elements as they propagate through a slotted wave guide.

Abstract: Examples disclosed herein relate to a meta-structure based reflectarray for beamforming wireless applications and a method of operation of passive reflectarrays in an indoor environment. The method includes receiving, by a plurality of passive reflectarrays, a Radio Frequency (RF) signal from a source. The method also includes reflecting, by the plurality of passive reflectarrays, the RF signal to generate a plurality of RF beams to a respective target coverage area, in which each of the plurality of RF beams increases a multipath gain along a signal path between a corresponding passive reflectarray to the respective target coverage area.

Abstract: Examples disclosed herein relate to a radiating structure having a plurality of slotted transmission lines, each transmission line including a plurality of boundary lines defining each transmission line, wherein slots are positioned in each transmission line and include a first set of slots interspersed with a second set of slots, the second set of slots having a size smaller than the first set of slots, and a plurality of irises positioned proximate each of the slots and along the length of each transmission line. The radiating structure also has an array of radiating elements proximate the slotted transmission lines so as to receive a transmission signal from the slotted transmission lines and generate a radiation pattern corresponding to the transmission signal.

Abstract: Examples disclosed herein relate to a meta-structure (“MTS”) antenna system for next generation wireless networks in moving vehicles. The MTS antenna system includes an MTS antenna mounted on an exterior surface of the moving vehicle and comprising an MTS array of MTS cells, and an internal gateway for communicating wireless signals to the MTS antenna.

Abstract: Examples disclosed herein relate to a beam steering vehicle radar for object identification. The beam steering vehicle radar includes a beam steering receive antenna having a plurality of antenna elements to generate a radiation beam comprising a main lobe and a plurality of side lobes, at least one guard band antenna to generate a guard band radiation beam, and a perception module coupled to the beam steering receive antenna to detect and identify a first object reflection in the radiation beam. The perception module has a monopulse module to determine a range and angle of arrival for the first object reflection and detect multiple objects upon determining an absence of a second object reflection in the guard band radiation beam.

Abstract: Examples disclosed herein relate to a multi-layer, multi-steering (“MLMS”) antenna array for millimeter wavelength applications. The MLMS antenna array includes a superelement antenna array layer comprising a plurality of superelement subarrays, in which each superelement subarray of the plurality of superelement subarrays includes a plurality of radiating slots for radiating a transmission signal. The MLMS antenna array also includes a power division layer configured to serve as a feed to the superelement antenna array layer, in which the power division layer includes a dielectric layer interposed between a plurality of conductive layers. The MLMS antenna array also includes a top layer disposed on the superelement antenna array layer. The top layer may include a superstrate or a metamaterial antenna array. Other examples disclosed herein include a radar system for use in an autonomous driving vehicle.

Abstract: Examples disclosed herein relate to reflectarray antenna for enhanced wireless applications. The reflectarray antenna has a ground conductive plane, a dielectric substrate coupled to the ground conductive plane, and a patterned conductive plane coupled to the dielectric substrate and comprising an array of cells to generate an antenna gain. In some aspects, each cell in the array of cells includes a reflector element with a predetermined custom configuration and configured to receive a radio frequency (RF) signal and to generate an RF return beam at a predetermined direction. Other examples disclosed herein relate to a portable reflectarray and a method of fabricating a reflectarray antenna.

Abstract: Examples disclosed herein relate to methods and apparatuses for a radiating structure to radiate a transmission signal, where the radiating structure incorporates reactance control elements to change a reactance of transmission lines and/or radiating unit cell elements, and a resonant coupler to isolate the transmission signal from a reactance control signal to the reactance control elements. A reactance control signal, such as a bias voltage, controls the reactance of transmission lines of the transmission array structure and/or the radiating unit cell elements so as to change the phase of the transmission signal, thereby steering a beam of the transmission signal. The reactance control elements may be incorporated into a microstrip within the transmission lines.